ihealth_ios/Inhealth/IHPhotoPicker.swift

//
//  IHPhotoPicker.swift
//  Inhealth
//
//  Created by weclouds on 2019/12/29.
//  Copyright © 2019 weclouds. All rights reserved.
//

import UIKit

class IHPhotoPicker: NSObject , UIImagePickerControllerDelegate, UINavigationControllerDelegate {
   
    var target : UIViewController?
    var didClickImageBlock:((UIImage)->Void)?
   
   fileprivate  let imagePicker = UIImagePickerController()
    
    override init() {
        super.init()
    }
 
    func showImagePicker(vc : UIViewController, completion: @escaping (UIImage)->Void) {
        self.didClickImageBlock = completion
        self.target = vc
        
         imagePicker.delegate = self
         show()
    }
 
    
  fileprivate  func show(){
        let alert = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
               
               alert.addAction(UIAlertAction(title: "相册", style: .default, handler: { (button) in
                   self.imagePicker.sourceType = .photoLibrary
                self.imagePicker.delegate = self
                   self.imagePicker.modalPresentationStyle = .fullScreen
                  self.target?.present(self.imagePicker, animated: true, completion: {
                      self.imagePicker.delegate = self
                  })
               }))
               
               alert.addAction(UIAlertAction(title: "相机", style: .default, handler: { (button) in
                   self.imagePicker.sourceType = .camera
                self.imagePicker.delegate = self
                self.imagePicker.modalPresentationStyle = .fullScreen
                self.target?.present(self.imagePicker, animated: true, completion: {
                    self.imagePicker.delegate = self
                })
               }))
               
               alert.addAction(UIAlertAction(title: "取消", style: .cancel, handler: nil))
          
              self.target?.present(alert, animated: true, completion: nil)
    }
    
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        imagePicker.dismiss(animated: true, completion: nil)
    }
    
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        log.debug(info)
         guard let pickedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage else { return }
        
        if let block = self.didClickImageBlock {
             block(pickedImage)
        }
         imagePicker.dismiss(animated: true, completion: nil)
     }
    
    
}